Mail merge is one of the most useful features of Microsoft Word when wanting to send personalized letters, documents or e-mails to people you have stored in an Excel sheet. Let me show you how to use it.
Airplane mode on a phone is when you disable all the active connections like WiFi, bluetooth and mobile network. Let's see how to enable it so you don't need to turn off your phone on an airplane.
X-rays are a form of invisible, high-frequency electromagnetic radiation. X-rays are very small and energetic. They are used in different branches of science.
